Photo: Swine Flu in Swine: Flu Could Worsen; Industry at Risk



It's only a matter of time before swine flu jumps to U.S. pigs, such as these animals shown on a North Dakota farm in 2005, experts say.

Scientists say H1N1 could turn into a worse strain in pigs and reemerge stronger in humans, while farmers—already battered by the perception that pork is unsafe—fear even worse sales.

Photograph by Will Kincaid/AP


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